这张测试卡用于电视系统需要的高精度定位测试以及HDTV需要的高分辨率测量。
这张图由水平和垂直间距为h/45的直线和直径为√2h, h, 5h/12, 以及 h/4的圆组成包含400TV到1600TV的条纹。
有效面积 | 外形尺寸 | |
透射式 | 272×153 | 310×200 |
反射式 | 512×288 | 570×350 |
This Test Chart is used for registration of TV systems which needs high-accuracy registration and high resolution needed by HDTV.
Horizontal and vertical spacing in line is h/45 and the diameters of the circles are √2h, h, 5h/12, and h/4 in the chart which consists of 400TV to 1600TV of fringes.
Sizes of effective area and outer shape of refection test chart are indicated in below table.
Effective Area | Outer Size | |
Transparent Type | 272×153 | 310×200 |
Opaque Type | 512×288 | 570×350 |